After importing a Maven GWT project into Eclipse the debugger doesn\'t work, complaining that it\'s
Unable to find ProjectName.gwt.xml on your classpath
I found that Davek804's comment helped me: I simply deleted the debug configuration (Run=>Debug Configuration=>right click and deleted project will run
It turns out that when you debug some GWT project as Web Applications, Eclipse does not append the module name (i.e. the gwt.xml file) to the list of arguments. I tried adding it manually, but forgot to add the complete package name that houses the gwt.xml file. The module should have been referred to as com.company.project.Project.gwt.xml, not just Project.gwt.xml.
Try going to Run -> Run Configurations in the menu and then select the Classpath tab and add the missing project.